Wired headset with microphone

Plug type: L-bend type
Sound principle: moving iron
Frequency response range: 20-20000 (Hz)
Impedance: 20 (Ω)
Sensitivity: 100 (dB)
Distortion rate: 1 (%)
Wire length: 1.2 (m)
Speaker diameter: 4 (Φmm)
Earplug/earmuff material: skin-friendly silicone sleeve
Headphone cable material: TPE